CN205295916U - RPC leveling board - Google Patents

Abstract

The utility model is an RPC leveling plate, which comprises an RPC bottom plate made of RPC concrete and several steel bars; the RPC bottom plate is rectangular or square, and the lower end of the steel bar is poured in the upper side of the RPC bottom plate and connected with the RPC The bottom plate is rigidly connected as a whole. The utility model overcomes the shortcomings of the traditional leveling steel plate, and solves the problems of weak corrosion resistance and poor durability of the traditional leveling steel plate. In addition, the utility model adopts RPC active powder concrete with high compressive strength, high flexural strength and high toughness, thereby greatly improving the compressive and flexural properties of the leveling plate.

Description

RPC leveling plate

technical field

The utility model relates to a leveling plate used for the bottom of a prefabricated bridge, in particular to a concrete leveling plate.

Background technique

At present, the leveling devices commonly used at the bottom of prefabricated bridges are mostly steel plates embedded or welded at the bottom of the bridge. The defects of this leveling device are: the steel plate has weak corrosion resistance and poor durability. Long-term exposure of the leveling steel plate at the bottom of the prefabricated beam to the air will cause the leveling steel plate to rust, which will greatly reduce the compressive strength and flexural strength of the leveling steel plate, thereby affecting the performance of the T-beam structure.

Utility model content

The purpose of the utility model is to provide an RPC leveling plate, which solves the technical problems of traditional leveling steel plate, weak corrosion resistance, poor durability, low compressive strength and flexural strength.

In order to achieve the above object, the utility model adopts the following technical solutions:

A kind of RPC leveling plate, described RPC leveling plate is (ReactivePowderConcrete) active powder concrete leveling plate, it is characterized in that: comprise the RPC bottom plate that is made of RPC concrete and several vertical steel bars horizontally, described RPC bottom plate is rectangular Or square, the lower end of the steel bar is poured into the upper side of the RPC base plate and rigidly connected with the RPC base plate as a whole.

Preferably, the steel bars are distributed along the periphery of the RPC bottom plate.

Preferably, the distance from the steel bar to the edge of the RPC bottom plate is not less than 30mm.

Preferably, the RPC bottom plate has a length of 60cm-75cm, a width of 50cm-70cm, and a thickness of 45-60mm.

Preferably, the steel bar has a diameter of 10mm.

The beneficial effects of the utility model are as follows:

1. The utility model overcomes the shortcomings of the traditional leveling steel plates that are easy to rust, and solves the problems of weak corrosion resistance and poor durability of the traditional leveling steel plates.

2. The utility model adopts RPC active powder concrete with high compressive strength, high flexural strength and high toughness, thereby greatly improving the compressive and flexural properties of the leveling plate, and ensuring the normal use of the T-beam structure.

3. The utility model can be widely used in leveling devices at the bottom of prefabricated beams.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the schematic diagram of the utility model.

Fig. 2 is the schematic diagram that the utility model is installed in the bunker of T-beam pedestal.

Fig. 3 is a schematic diagram of the utility model poured in a T-beam.

Figure 4 is a schematic side view of the RPC leveling plate poured into the T-beam.

Reference signs: 1-RPC floor, 2-reinforcement bar, 3-T beam, 4-sand pit, 5-T beam pedestal, h-distance from steel bar to edge of RPC floor, a-length of RPC floor, b- The width of the RPC base plate, and the thickness of the c-RPC base plate.

detailed description

As shown in Figure 1, this RPC leveling plate includes a horizontal RPC base plate 1 made of RPC concrete and several vertical steel bars 2, the RPC base plate 1 is rectangular or square, and the lower end of the steel bar 2 is poured In the upper side of the RPC base plate 1 and rigidly connected with the RPC base plate 1 as a whole.

In this embodiment, the steel bars 2 are distributed along the periphery of the RPC bottom plate 1 .

In this embodiment, the distance h between the steel bar 2 and the edge of the RPC bottom plate 1 is not less than 30 mm.

In this embodiment, the length a of the RPC bottom plate 1 is 60cm-75cm, the width b is 50cm-70cm, and the thickness c is 45-60mm.

In this embodiment, the diameter of the steel bar 2 is 10mm.

The new production method of the utility model has the following steps:

Step 1: Set up the mold for pouring the RPC leveling plate. The mold needs to ensure that the flatness of the RPC leveling plate is not greater than 2mm.

Step 2: Pre-embed the steel bar 2 of the RPC leveling plate, and adjust the position of the steel bar 2 according to the position of the steel bar on the bottom plate of the T beam to avoid conflicts during installation;

Step 3: Pouring RPC concrete;

Step 4: After the final setting of the RPC concrete, remove the formwork and perform high-temperature steam curing; during curing, use steam at 80°C for 72±1h, or steam at 90°C for 48±1h.

Construction method of the present utility model as shown in Figure 2 and Figure 3, its steps are as follows:

Step 1: Process the RPC leveling plate, and transport it to the construction site after passing the test;

Step 2: According to the slope i% of the longitudinal slope of the T-beam and the length L of the RPC leveling plate along the bridge direction, calculate the height difference of the leveling block along the bridge direction H=i%×L, and install the RPC leveling plate on the T-beam pedestal (5 ) in the bunker (4), use the bunker to adjust the height difference H at both ends of the RPC leveling plate;

Step 3: After the RPC leveling plate is installed, bind the steel bar of the T-beam web and the steel bar 2 of the RPC leveling plate;

Step 4: After the steel bars are bound, install the formwork of the T-beam 3;

Step 5: Pour concrete after the formwork is installed.

Claims (5)

1. An RPC leveling plate, characterized in that: it includes a horizontal RPC base plate (1) made of RPC concrete and several vertical steel bars (2), and the RPC base plate (1) is rectangular or square, so The lower end of the steel bar (2) is poured into the upper side of the RPC bottom plate (1) and rigidly connected with the RPC bottom plate (1) as a whole. 2. The RPC leveling plate according to claim 1, characterized in that: the steel bars (2) are distributed along the periphery of the RPC bottom plate (1). 3. The RPC leveling plate according to claim 1, characterized in that: the distance (h) from the steel bar (2) to the edge of the RPC bottom plate (1) is not less than 30mm. 4. The RPC leveling plate according to claim 1, characterized in that: the length (a) of the RPC base plate (1) is 60cm-75cm, the width (b) of the RPC base plate (1) is 50cm-70cm, and the RPC base plate (1) The thickness (c) of the bottom plate (1) is 45-60mm. 5. The RPC leveling plate according to claim 1, characterized in that: the diameter of the steel bar (2) is 10mm.